Synchronous Motors A synchronous motor runs at only one speed because it ______ Has a damper winding None of the listed here Has no losses Is a doubly fed machine Has a damper winding None of the listed here Has no losses Is a doubly fed machine ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the field of a synchronous motor is under-excited, the power factor will be zero unity lagging leading zero unity lagging leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.5 leading Unity 0.8 lagging 0.8 leading 0.5 leading Unity 0.8 lagging 0.8 leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The ratio of starting torque to running torque in a synchronous motor is Infinity Zero One Two Infinity Zero One Two ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. None of the listed here Increase Decrease Remain unchanged None of the listed here Increase Decrease Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor cannot be due to variable load variable supply voltage windage friction variable frequency variable load variable supply voltage windage friction variable frequency ANSWER DOWNLOAD EXAMIANS APP
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